Behavioral Ecology最新文献_第5页

Inbreeding strategies under social and sexual complexity: insights from female and male guppies. 社会和性别复杂性下的近亲繁殖策略：来自雌性和雄性孔雀鱼的见解。

IF 2.2 3区环境科学与生态学

Behavioral Ecology Pub Date : 2026-03-04 eCollection Date: 2026-05-01 DOI: 10.1093/beheco/arag017

Amanda Viving, Léa Daupagne, David Wheatcroft, Niclas Kolm, John L Fitzpatrick

{"title":"Inbreeding strategies under social and sexual complexity: insights from female and male guppies.","authors":"Amanda Viving, Léa Daupagne, David Wheatcroft, Niclas Kolm, John L Fitzpatrick","doi":"10.1093/beheco/arag017","DOIUrl":"10.1093/beheco/arag017","url":null,"abstract":"Animals are typically expected to avoid mating with relatives due to the costs associated with incestuous matings. Yet for more than 4 decades, theoretical models have consistently suggested that animals may tolerate, or even prefer, mating with relatives under a broad range of conditions. However, empirical studies that evaluate inbreeding strategy under alternative social and sexual contexts remain scarce. Here, we investigate how experimental variation in sexual and social complexity influence precopulatory inbreeding avoidance behaviors in the guppy Poecilia reticulata, a species known to experience inbreeding depression. In an integrated set of experiments, we examined if sexual and affiliative behaviors of virgin and experienced females and males were differentially directed towards either related or unrelated individuals. In simple social context, neither virgin nor experienced females or males showed a preference for related or unrelated partners. In more sexually and socially complex free-swimming arenas, females appeared to respond slightly more to related males, but this effect was not statistically significant once corrected for multiple comparisons; male preference remained unchanged. Overall, these findings challenge previous reports of preference shifts between virgin and experienced female guppies and suggest that inbreeding avoidance behaviors may be less prevalent in complex social environments than previously thought.","PeriodicalId":8840,"journal":{"name":"Behavioral Ecology","volume":"37 3","pages":"arag017"},"PeriodicalIF":2.2,"publicationDate":"2026-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13016797/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147519750","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Cognitive individual differences are key in the network of trait covariance. 认知个体差异是特征协方差网络的关键。

IF 2.2 3区环境科学与生态学

Behavioral Ecology Pub Date : 2026-03-02 eCollection Date: 2026-05-01 DOI: 10.1093/beheco/arag027

Gaia De Russi, Elia Gatto, Mattia Lanzoni, Giuseppe Castaldelli, Cristiano Bertolucci, Tyrone Lucon-Xiccato

{"title":"Cognitive individual differences are key in the network of trait covariance.","authors":"Gaia De Russi, Elia Gatto, Mattia Lanzoni, Giuseppe Castaldelli, Cristiano Bertolucci, Tyrone Lucon-Xiccato","doi":"10.1093/beheco/arag027","DOIUrl":"10.1093/beheco/arag027","url":null,"abstract":"Individual differences in cognition are widespread across animal taxa, and despite progress in identifying possible mechanisms shaping evolution and maintenance of this variation, significant gaps in our understanding persist. A crucial but often overlooked factor is the covariation between cognitive traits and traits from other domains, which can impose evolutionary constraints and drive indirect selection, shaping cognitive variance. To explore this factor, the present study investigated the covariation between cognitive, behavioral, physiological, and life-history traits in a wild-caught fish, the tench (Tinca tinca). We focused on 5 cognitive traits: motor lateralization, visual lateralization, spatial learning, cognitive flexibility, and memory. These cognitive traits were interrelated, with for instance, faster learners exhibiting lower cognitive flexibility. Additionally, cognitive traits correlated with several behavioral and physiological traits. Using a network analysis, we demonstrated the relevance of cognitive variance in the relationship among traits. Visual lateralization was central in the network, connecting subnetworks including behavioral and physiological traits. Memory was strongly linked to physiological traits. Last, spatial learning, cognitive flexibility, and visual lateralization were the traits with the highest impact in the whole network. Overall, our study not only highlights the complex associations between cognitive, behavioral and physiological, but also underscores the critical role of cognition in these relationships. This finding supports the idea that the evolution and maintenance of cognitive variance are both influenced by, and exert remarkably influence on, the variation in other traits.","PeriodicalId":8840,"journal":{"name":"Behavioral Ecology","volume":"37 3","pages":"arag027"},"PeriodicalIF":2.2,"publicationDate":"2026-03-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13017037/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147571942","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Temporal scale and conspecific density drive moonlight preferences of a nocturnal granivore. 时间尺度和同密度驱动夜间食草动物对月光的偏好。

IF 2.2 3区环境科学与生态学

Behavioral Ecology Pub Date : 2026-02-27 eCollection Date: 2026-03-01 DOI: 10.1093/beheco/araf150

Rafał Zwolak, Milena Zduniak, Paulina Celebias, Aleksandra Wróbel

{"title":"Temporal scale and conspecific density drive moonlight preferences of a nocturnal granivore.","authors":"Rafał Zwolak, Milena Zduniak, Paulina Celebias, Aleksandra Wróbel","doi":"10.1093/beheco/araf150","DOIUrl":"10.1093/beheco/araf150","url":null,"abstract":"Foraging animals must balance energy gain with predation risk. In nocturnal animals, this tradeoff is often mediated by moonlight, which helps to find food but also increases exposure to predators. Although most studies suggest rodents avoid moonlight, prior research has largely focused on open habitats and used lunar phase as a crude proxy for illumination. We investigated how fine-scale moonlight brightness affects foraging in yellow-necked mice (Apodemus flavicollis) removing Quercus robur acorns in a broadleaf forest. Using complementary analyses, we examined foraging across nights and the timing of foraging bouts within nights. We expected that foraging would decrease with increasing moonlight, temporal preferences would be less pronounced under high mouse density, and sensitivity to moonlight would vary with residual reproductive value (influenced by sex and body mass) and behavioral type (exploration in open-field tests). Contrary to predictions, seed removal was higher during bright, clear nights. However, within nights, mice concentrated foraging efforts during darker intervals. This pattern is consistent with higher foraging efficiency on bright nights combined with avoidance of high-risk periods within those nights. As predicted, high mouse abundance reduced selectivity for optimal foraging conditions. While behavioral types had no effect, across-nights analyses demonstrated that males and lighter individuals preferred darker nights, while within nights, females showed greater sensitivity to cloud cover, foraging under lower moonlight when skies were clear. Overall, these results indicate that moonlight preferences can vary with the temporal scale of analyses and individual traits, while preference strength declines with increasing conspecific density.","PeriodicalId":8840,"journal":{"name":"Behavioral Ecology","volume":"37 2","pages":"araf150"},"PeriodicalIF":2.2,"publicationDate":"2026-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13016970/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147571952","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Experimental evidence for flexibility in provisioning behavior in a cooperatively breeding bird. 合作繁殖鸟类供给行为灵活性的实验证据。

IF 2.2 3区环境科学与生态学

Behavioral Ecology Pub Date : 2026-02-26 eCollection Date: 2026-05-01 DOI: 10.1093/beheco/arag021

María Espinosa-Colín, Carlos de la Cruz, Jorge S Gutiérrez

{"title":"Experimental evidence for flexibility in provisioning behavior in a cooperatively breeding bird.","authors":"María Espinosa-Colín, Carlos de la Cruz, Jorge S Gutiérrez","doi":"10.1093/beheco/arag021","DOIUrl":"10.1093/beheco/arag021","url":null,"abstract":"The flexible-investment hypothesis posits that parents should allocate their resources according to offspring needs. The available evidence suggests that this is valid in most avian biparental care systems; yet, experiments designed to quantify the degree to which caregivers respond to the demands of offspring are rare in cooperative breeding systems, where offspring are reared by individuals additional to the breeding pair (ie helpers). By cross-fostering Iberian magpie (Cyanopica cooki) chicks of different ages, we tested whether breeders and helpers adjust both the duration and intensity of care in response to brood developmental stage. Both breeders and helpers (all males) prolonged their nestling care period when raising chicks younger than their own and shortened it when raising chicks older than their own, with no detectable effect on reproductive success. Overall, provisioning increased when the chick-rearing period was experimentally shortened and decreased when it was prolonged. Yet, the magnitude of these responses differed among carer statuses. In the shortening experiment, female breeders showed the strongest increase in provisioning, whereas helpers showed little or no change. In contrast, during brood prolongation, provisioning declined in all carer types but was most pronounced in breeders. Overall, these results support the flexible-investment hypothesis while indicating that helpers exhibit more limited flexibility in their feeding responses than breeders. Combined with previous observational work, our results are consistent with the idea that helping behavior may function in part as a signal to gain direct benefits through reciprocity.","PeriodicalId":8840,"journal":{"name":"Behavioral Ecology","volume":"37 3","pages":"arag021"},"PeriodicalIF":2.2,"publicationDate":"2026-02-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13009402/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147509201","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

IF 2.2 3区环境科学与生态学

Behavioral Ecology Pub Date : 2026-02-25 eCollection Date: 2026-05-01 DOI: 10.1093/beheco/arag020

Magdalena Herdegen-Radwan, Jarosław Raubic

{"title":"Age-related changes and selective disappearance shape variation in bold-shy continuum in guppies.","authors":"Magdalena Herdegen-Radwan, Jarosław Raubic","doi":"10.1093/beheco/arag020","DOIUrl":"10.1093/beheco/arag020","url":null,"abstract":"The persistence of animal personalities within populations contradicts the optimality principle, assuming a single optimal trait value for all individuals. With the advance of research on the maintenance of animal personalities, 2 types of data have emerged as particularly needed: (i) longitudinal data, allowing to distinguish population-level and cohort-level variance in personality traits, and (ii) estimates of additive genetic variance in personality traits and their genetic correlations with life history traits. While longitudinal studies are beginning to emerge, most research to date has relied on behavioral measures at a single life-stage, limiting our understanding of the interplay between ages and genotypes. To address this gap, we employed a 3-generations pedigree design in a captive guppy (Poecilia reticulata) population, measuring boldness, a behavioral trait showing among-individual variance, at different stages of ontogeny and collecting long-term survival data. This design enabled us to investigate the genetic contribution to variance in boldness and survival and examine how it changes across the lifespan in the behavioral trait. Our results show that boldness decreased with age. Further, we found support for phenotypic covariance between boldness and survival, resulting in a negative association between the traits. Additive genetic effects contributed to both boldness and survival, and we found negative genetic correlation between those traits, in line with POLS scenario. Lastly, average boldness was higher in males than females, while the contribution of additive genetic variance did not differ across sexes. Our findings highlight the complex, dynamic interplay of age, genotype, and sex in shaping individual behavior.","PeriodicalId":8840,"journal":{"name":"Behavioral Ecology","volume":"37 3","pages":"arag020"},"PeriodicalIF":2.2,"publicationDate":"2026-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13008831/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147509264","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Maternal diet exerts sex-specific effects on offspring' personalities in predatory mites. 母食对掠食性螨后代的性格有性别特异性影响。

IF 2.2 3区环境科学与生态学

Behavioral Ecology Pub Date : 2026-02-25 eCollection Date: 2026-03-01 DOI: 10.1093/beheco/arag023

Thi Hanh Nguyen, Peter Schausberger

{"title":"Maternal diet exerts sex-specific effects on offspring' personalities in predatory mites.","authors":"Thi Hanh Nguyen, Peter Schausberger","doi":"10.1093/beheco/arag023","DOIUrl":"10.1093/beheco/arag023","url":null,"abstract":"Animal personalities are characterized by consistent behavior within individuals linked to consistently variable behavior among individuals in a population across time and contexts. Genetic determination, transgenerational effects, and personal experience are major pathways shaping animal personalities. Among these pathways, little attention has been paid to environmental factors in the parental generation affecting offspring personality. Here we tested the effects of the maternal diet on offspring personality in the plant-inhabiting predatory mite Amblyseius swirskii. Mated females and males, whose mothers were fed during egg production on cattail pollen, spider mites, or thrips, were subjected to a battery of 3 to 5 tests each for exploration, activity, and boldness. Movement activity was assessed in the mites' familiar environment. Exploration was quantified by the latency to leave and reach novel sites or objects. Boldness was evaluated by residence in risky and benign sites. On average, offspring from spider mite-fed mothers were the most active and those from pollen-fed mothers were the shiest. Offspring from thrips-fed mothers were more repeatable in activity than offspring from pollen- and spider mite-fed mothers. Consistently little and highly active personalities produced more eggs than flexible types. Only offspring from pollen-fed mothers were repeatable in boldness. Taken together, our study suggests that the maternal diet critically influences both mean behavioral trait expression and behavioral repeatability of offspring. The ability of mothers to respond to short-term diet changes during internal egg formation allows to adaptively adjust the behavior and personalities of daughters and sons within local and regional groups.","PeriodicalId":8840,"journal":{"name":"Behavioral Ecology","volume":"37 2","pages":"arag023"},"PeriodicalIF":2.2,"publicationDate":"2026-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13017051/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147571944","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Visual cues elicit differential aggression towards female and female mimics in the corkwing wrasse. 视觉线索会引起濑鱼对雌性和雌性模仿者的不同攻击。

IF 2.2 3区环境科学与生态学

Behavioral Ecology Pub Date : 2026-02-25 eCollection Date: 2026-05-01 DOI: 10.1093/beheco/arag022

Benjamin A Ellis, Tonje K Sørdalen, Mark Briffa, Anne Berit Skiftesvik, Alexander D M Wilson, Kim A T Halvorsen

{"title":"Visual cues elicit differential aggression towards female and female mimics in the corkwing wrasse.","authors":"Benjamin A Ellis, Tonje K Sørdalen, Mark Briffa, Anne Berit Skiftesvik, Alexander D M Wilson, Kim A T Halvorsen","doi":"10.1093/beheco/arag022","DOIUrl":"10.1093/beheco/arag022","url":null,"abstract":"Alternative reproductive tactics (ARTs) are consistent intrasexual differences in behavior that maximize reproductive success through different means. In corkwing wrasse (Symphodus melops), smaller males mimic female visual morphology (hereafter sneakers) to steal fertilizations from nest-building parental males (hereafter nesting males). We investigated whether this visual mimicry effectively deceived 47 nesting males across 4 sites by quantifying 2 agonistic responses (attack latency and attack frequency) to models depicting unfamiliar females, sneakers and rival nesting males. Contrary to expectations, nesting males exhibited faster agonistic responses towards female models, with lower attack latencies compared with both male types. Additionally, the relationship between model type and attack frequency varied between sites, with reduced attack frequencies at sites subject to increased levels of anthropogenic disturbance. These results provide evidence that nesting males can visually discriminate between females and sneakers even in the absence of behavioral cues, suggesting that visual mimicry alone may be insufficient for successful deception. This highlights the need to investigate alternative sensory modalities, such as behavioral mimicry, to explain the successful reproduction of sneaker males and the maintenance of ARTs in this species.","PeriodicalId":8840,"journal":{"name":"Behavioral Ecology","volume":"37 3","pages":"arag022"},"PeriodicalIF":2.2,"publicationDate":"2026-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13017837/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147571937","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Impact of increased nest temperature on incubation behavior and female health in Eurasian Blue Tit. 巢温升高对欧亚蓝山雀孵化行为及雌性健康的影响。

IF 2.2 3区环境科学与生态学

Behavioral Ecology Pub Date : 2026-02-21 eCollection Date: 2026-03-01 DOI: 10.1093/beheco/arag016

M García-Del Río, S Merino, F Castaño-Vázquez, Y Merino, M Fuertes-Recuero, A Cantarero

{"title":"Impact of increased nest temperature on incubation behavior and female health in Eurasian Blue Tit.","authors":"M García-Del Río, S Merino, F Castaño-Vázquez, Y Merino, M Fuertes-Recuero, A Cantarero","doi":"10.1093/beheco/arag016","DOIUrl":"10.1093/beheco/arag016","url":null,"abstract":"The increase in temperature associated with climate change may influence reproductive costs in birds, particularly during the incubation period, which is temperature-dependent and crucial for embryo development. Female birds are usually solely responsible for incubation and should face a tradeoff between the time spent incubating and foraging or performing other self-maintenance activities outside the nest. Here we studied the effects of temperature on incubation behavior, female health and offspring fitness-related traits of Blue Tits (Cyanistes caeruleus). To that end, we experimentally increased the temperature inside nest boxes used by Blue Tits by an average of 3.29 °C as compared to control nests. Females in heated nests spent less time incubating with more frequent incubation sessions as compared to females from control nests. Furthermore, fewer females attending heated nests were infected at 3 d of nestling age, and those infected had lower intensity of blood parasite infections and were infected by a lower number of different parasites. In addition, females from control nests with longer incubation periods exhibited higher infection intensities of Haemoproteus and Lankesterella. This could be due to improved immune resource allocation as incubation effort decreased. However, 10 d later, most of the effects on blood parasites disappear, and we found no effect of treatment on females' body mass or breeding success, suggesting that control females achieve similar reproductive success by investing more time incubating, at the cost of their health. These results indicate that variations in nest temperature can have significant short-term effects that might have consequences for fitness.","PeriodicalId":8840,"journal":{"name":"Behavioral Ecology","volume":"37 2","pages":"arag016"},"PeriodicalIF":2.2,"publicationDate":"2026-02-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13016975/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147571802","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Maternal age and density shape offspring foraging strategies in a predatory mite. 母螨的年龄和密度决定了其后代的觅食策略。

IF 2.2 3区环境科学与生态学

Behavioral Ecology Pub Date : 2026-02-17 eCollection Date: 2026-03-01 DOI: 10.1093/beheco/arag018

Keshi Zhang, Peter Schausberger, Zhi-Qiang Zhang

{"title":"Maternal age and density shape offspring foraging strategies in a predatory mite.","authors":"Keshi Zhang, Peter Schausberger, Zhi-Qiang Zhang","doi":"10.1093/beheco/arag018","DOIUrl":"10.1093/beheco/arag018","url":null,"abstract":"Maternal effects are key drivers of offspring phenotypic plasticity, influencing traits such as survival, growth, and behavior. Maternal age at oviposition is an intrinsic factor governing such effects, which often exerts negative impacts on offspring traits. However, in the thelytokous predatory mite Amblyseius herbicolus, offspring of older mothers exhibit increased growth efficiency and reduced prey consumption. The proximate mechanisms of this inverse Lansing effect remain elusive, but this conservative offspring' foraging strategy may reflect an anticipatory maternal response to mitigate intraspecific competition among later-produced offspring. Here, we investigated how maternal age at oviposition and maternal rearing density influence offspring foraging strategies. Eggs (ie offspring) were collected from mothers maintained under low- and high-density conditions and classified as Young or Old based on maternal age at oviposition. Offspring were then assessed for immature survival under low prey availability, prey consumption, predation incidence, latency to attack prey, and superfluous killing. Offspring of older mothers showed reduced prey consumption and lower predation incidence, whereas offspring of high-density mothers had higher survival under prey limitation. Maternal density partially modulated age-related effects. Our findings highlight the role of maternal effects in shaping adaptive foraging strategies and demonstrate that maternal influences can induce risk-averse behavioral changes in response to ecological conditions. Both intrinsic and extrinsic maternal factors shape offspring behavioral strategies, and maternal age, in particular, can serve as a dynamic source of variation influencing predator-prey interactions and population dynamics.","PeriodicalId":8840,"journal":{"name":"Behavioral Ecology","volume":"37 2","pages":"arag018"},"PeriodicalIF":2.2,"publicationDate":"2026-02-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13017719/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147571782","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Asymmetry in responsiveness to playback of geographic song variation after a recent range expansion in light-vented bulbuls. 在最近的范围扩大后，对地理歌曲变化重放的反应不对称。

IF 2.2 3区环境科学与生态学

Behavioral Ecology Pub Date : 2026-02-10 eCollection Date: 2026-03-01 DOI: 10.1093/beheco/arag012

Xiaoying Xing, Xiaojing Yang, Xiajuan Xu, Changjian Fu, Gang Song, Fumin Lei, Hans Slabbekoorn

{"title":"Asymmetry in responsiveness to playback of geographic song variation after a recent range expansion in light-vented bulbuls.","authors":"Xiaoying Xing, Xiaojing Yang, Xiajuan Xu, Changjian Fu, Gang Song, Fumin Lei, Hans Slabbekoorn","doi":"10.1093/beheco/arag012","DOIUrl":"10.1093/beheco/arag012","url":null,"abstract":"Birdsong variation among populations within species has been regarded as a possible precursor for variation between species and may play a role in speciation. However, acoustic variation between 2 populations of the same or different species can have a variable impact on mutual responsiveness, and we currently lack sufficient insight into the underlying reasons. We report here on geographic song variation and responsiveness to playback for the light-vented bulbul (Pycnonotus sinensis), a species with recent range expansion in China. We recorded songs in 4 historical populations in the south and 6 newly established populations in the north. We tested responsiveness in 2 southern and 2 northern locations to songs from southern and northern birds. Besides songs from the other distribution range (south to north and north to south), we used recordings for playback from local, near-by, and far-away dialects from within their own distribution range. We confirmed distinct dialectal differentiation in the south and a more gradual pattern of geographic song divergence in the north. Birds in the south showed very little response to almost all nonlocal songs. In contrast, birds in the north showed a strong response to a wide-range of stimuli, just gradually fading from local, near-by, to far-away northern dialects, which may be related to song type sharing or individual mobility and aggression associated with the recent range expansion. We hereby add an asymmetric response pattern in responsiveness to the literature and review the current insights about the potential impact of song variation on avian speciation.","PeriodicalId":8840,"journal":{"name":"Behavioral Ecology","volume":"37 2","pages":"arag012"},"PeriodicalIF":2.2,"publicationDate":"2026-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13017478/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147571863","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0